Airedale hospital workers have voted to strike in anger at two-tier workforce structure.
Porters, domestics, catering and security staff will walk out over the fact they get worse terms and conditions than colleagues working at the same hospital.
The workers have been outsourced to AGH Solutions (AGHS), a wholly owned subsidiary of Airedale NHS Foundation Trust.
AGHS uses its subsidiary status to not honour the NHS Agenda for Change terms and conditions, including NHS pensions, sick pay rates, annual leave and Sunday working enhancements.
The workers want parity for everyone working across the trust.
More than 90 per cent of those who voted said they were ready to take industrial action which is scheduled for 12, 15 and 16 of September - with more dates set to follow.
Joe Wheatley, GMB Organiser, said:
"These workers are absolutely vital for Airedale Hospital to operate safely.
"It's outrageous that they are treated like second class citizens.
"These workers will walk out with heavy hearts - Airedale and AGHS must now recognise how important they are and give them the same pay, terms and conditions as the rest of the workforce."

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